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Protons and electrons were discovered toward the end of his life.

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Q: Did Mendeleev know about protons neutrons and electrons?
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Related questions

How may electrons neutrons protons are foundin the helium atom?

2 protons 2 electrons 2 neutrons 2 protons 2 electrons 2 neutrons don't know


What did daltons theory say about protons and electrons?

Nothing,Dolton did not know about Protons,neutrons and electrons


How many protons neutrons and electrons are found in phosphorous?

Phosphorus has an atomic no. of 15 and its atomic mass is 31.=we know,atomic no.=number of protons==also, atomic mass=no.of protons+no. of neutrons==this implies, 31=15+no. of neutrons= 31-15=no. of neutrons= 16=no. of neutrons==also,no. of protons=no, of electrons=so, total no. of protons=15total no. of electrons=15total no. of neutrons=16


What statement is true about atoms protons neutrons and electrons?

Several come to mind. They are both found in the nucleus of an atom. Protons have a positive charge, while neutrons have no charge. They are nearly the same size, though neutrons are a bit larger. The sum of the protons and neutrons in an isotope of an element is its mass number.


How many neutrons are in iridium?

Indium have:protons = 49neutrons = 66electrons = 49to know how to get the protons, electrons and neutrons:protons = atomic number of the elementelectrons = protons or atomic number of the elementneutrons = mass number-atomic number


How many protons electrons and neutrons does Au- 197 have?

I know that there are Electrons:79 Protons: 79 Nuetrons: 118


How many electrons and neutrons does a carbon have?

6 protons 6 neutrons 6 electrons. If you can use Wikianswers then you should know how to use Google


How do you find the number of electrons in an atom if you know the number of protons and neutrons?

In a neutral atom, the number of electrons is equal to the number of protons of the nucleus.


How do we know what makes up the atom?

An atom contain protons, neutrons and electrons.


How many protons electrons and neutrons in uranium -238?

Protons = 92 Electrons = 92 Neutrons = 146 The number of electrons and protons in a neutral atom are each equal to the atomic number of the element (92). The number of neutrons equals the atomic weight minus the number of protons (238 - 92 = 146).Uranium has 92 protons, 92 electrons, and usually 147 neutrons, though another isotope has 143 neutrons.


What element has 53 protons and 74 neutrons?

Tungsten has 74 protons and 74 electrons, but it has 110 neutrons. Tantalum has 108 neutrons, but 73 protons and 73 neutrons.


How do you figure out protons electrons neutrons?

Find the atomic number. That tells you the number of protons and electrons (in a neutral atom). Then find the atomic weight. The number of protons plus the number of neutrons will equal the atomic weight. So if you know the wt. just subtract the number of protons and you will have the number of neutrons.